Really feed llvm-as with the testcase, do not let it read from stdin. This fixes the hangs seen on solaris10.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47604 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/PowerPC/frounds.ll b/test/CodeGen/PowerPC/frounds.ll
index 159639e..0d8e621 100644
--- a/test/CodeGen/PowerPC/frounds.ll
+++ b/test/CodeGen/PowerPC/frounds.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as | llc -march=ppc32
+; RUN: llvm-as < %s | llc -march=ppc32
 
 define i32 @foo() {
 entry: